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  grunt.registerTask('docker', 'Generate documentation', function() {
    var done = this.async();
    this.requiresConfig('docker.files');

    function done(file) {
      console.log(file);
      return function(err, result, code) {

      };
    }

    var files = grunt.file.expand(grunt.config('docker.files'));
    var cmd = './node_modules/docker/docker ' + files.join(' ');
    console.log('This is the command we\'ll run');
    console.log(cmd);

    grunt.utils.spawn({ cmd : cmd }, done);
  });